Fishing series with Coolstar U12, U13, U14 with wide U hull, flat bottom are appreciated especially for their high stability. Boats in this series are constructed especially for fisherman and people working on the water. Also the members of a fisherman's family can appreciate the stability, safety and good cruising performance of these boats during leisure rides. In some countries these boats are used as workboats for load transportation or as rescue boats for transportation of persons during floods.